A flanged cylindrical metallic item designed to be used on tubing to back up the flared end and to provide a bearing surface for the coupling nut, thereby reducing wear on the tubing flare. The inside diameter of the flanged end is countersunk to form a seat for the flare when assembled to a mating fitting.
NSN 4140-00-764-1005
NSN 6620-01-606-7810
NSN 5975-00-328-7922
NSN 5945-00-922-6494
NSN 5895-00-225-5926
NSN 5975-01-319-5781
NSN 6620-01-202-5763
NSN 5915-01-447-6770
NSN 6110-01-461-2631
NSN 5905-01-052-1666
NSN 5965-00-452-0967
NSN 5915-01-574-6481